30220221212 has 6 divisors (see below), whose sum is σ = 52885387128. Its totient is φ = 15110110604.

The previous prime is 30220221181. The next prime is 30220221217. The reversal of 30220221212 is 21212202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220221217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3777527648 + ... + 3777527655.

It is an arithmetic number, because the mean of its divisors is an integer number (8814231188).

Almost surely, 2^30220221212 is an apocalyptic number.

It is an amenable number.

30220221212 is a deficient number, since it is larger than the sum of its proper divisors (22665165916).

30220221212 is a wasteful number, since it uses less digits than its factorization.

30220221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7555055307 (or 7555055305 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 30220221212 its reverse (21212202203), we get a palindrome (51432423415).

The spelling of 30220221212 in words is "thirty billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twelve".